Clark played for the Minnesota Vikings in the National Football League for three seasons but had limited game action due to injuries.
[3] Clark's older brother Steve Rhem also played professional football.
[4] After the 2001 NFL draft, Clark signed as an undrafted free agent with the Minnesota Vikings on April 23, 2001, again becoming a teammate of his cousin Culpepper.
[4] In February 2003, Clark was allocated to the Amsterdam Admirals of NFL Europe, spending the season on the practice squad.
[5][3] Later that year, he would play the only game in his professional career, in which he returned two kickoffs for 33 yards in a 23–13 win over the Detroit Lions on September 21.